Map of Iowa primary road system : work completed or under contract Dec. 1, 1922
Shows roads in various states of construction: paved, gravel, graded, or not yet built.; Road mileage: Primary roads - 6,615 miles. Secondary roads - 97,466.0 miles.; Printed on blue paper with Iowa Bond watermark.
16 x 23 Centimeters, on sheet 22 x 28 Centimeters
Scale not given
General Map Collection
Iowa. Highway Commission
Iowa Highway Commission (Place of publication not identified)
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